Argand lamp.



No. 650 307. Patented M 22 |90 H. DABBY. ay o' ARGAND LAMP.

(Application filed. Sept. 1, 1899.)

3 Sheets-Sheet l,

(No Model.)

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No. 650,307. Patented May 22, |900.

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ARGAND LAMP.

(Application filed Sept. 1, 1899.)

3 Sheets-Sheet 2.

(No Model.)

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un. 650,307. Patemd may 22, |900. H. DARBY.

ABGAND LAMP.

(Application filed Sept. 1, 1899.)

Sheet 3.

3 Sheets (No Model.)

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UNITED I STATES.

PATENT OFFICE.

HENRY DAR-BY, OF LONDON, ENGLAND, ASSIGNOR TO WILLlAllLOI-IARLES PUNOHARD, QF SAME PLACE.

ARGANDy LAM P.

SPECIFICATION forming part of Letters Patent No. 656,307, dated May 22, 1900. Application iiled September l, 1899.l Serial No. 729,222. (No model.)

being of great brilliancy with economy of consumption of oil, while novel and striking effects are produced, the flame having very much the appearance ofv the present wellknown incandescent gas-burner with mantle,

although no mantle is used or intended to be used with the present invention, and by this invention an incandescent-like mantleless oillamp is thus produced with great brilliancy of light.

Referring to the accompanying drawings, in which the present invention is illustrated, Figure l is a view in elevation of a circularwick hydrocarbon-burner, partly in section.

Fig. 2 is a vertical sectional View taken' through the diameter of said circular-wick oil burner. burner. Fig. 4. is a separate View of the central cone or restrictor for use in the central air-passage of said oil-burner. Fig. 5 is a view similar to Fig. 2, but showing a modified form and arrangement of the interior reL strictor cone and iiame spreader. Fig. 6 shows another modiiication of the cone and flame-spreader thereon, and Fig. 7 shows still another modification. Fig. 8 is aview in elevation of a complete lamp constructed according to the present invention, with an ornamental open-work restrictor BX instead of the wire-gauze restrictor B shown in Figs. l and 5.

Similar letters of reference indicate corresponding parts throughout. p

A is the lower part of the circular burner, having screw-threaded part A' adapted to screw into any suitable oil-reservoir of the ordinary or any suitable type-*such for instance, as the oil-reservoir X (shown in Fig. 5)-cr this lower part of the burner may be Fig. 3 is a plan view of said B2, which latter carries the chimney-gallery' O, together with the circular hood D, as shown in Figs. 1 and 2, between the outside of which hood D and the gallery C an ordinary straightthroughi. e., cylindricalglass chimney Z or`other'suitable chimney is carried.

, The aforesaid partA may be formed either so as to be suitable for use with the wellknown central draft through the reservoir X or with the well-known form of Wick-tube illustrated in the drawings-namely, the outer and inner circular-wick tubes E and F have the aperture Y formed through same,`so as to allow an ample supply of air to pass up the center of the said wick-tubes, and these said lcircular-wick tubes E and F are mounted and secured rigidly on the upper side of the aforesaid part A of the burner.

G is a circular inwardly-projecting iiange p carried on the inside of the upper collar B2,

.so as to thus limit the size of the annular space between same and the outside-of the' upper part of the outer wick-tube E.

`VVit-hin the inner wick-tube vF is arranged and mounted a suitable restrictor I-I or means to regulate the central draft passing up the inside of the inner wick-tube F to the interior of the flame, such restrictor H being advantageously in the form shown in Fig. 4.- namely, the lowermost part thereof adapted to fit closely inside the wick-tube F and rest on a shoulder F', formed inside said tube F, and then said restrictor H is formed tapered and perforated at H and at the upper part thereof is closed by the cap or cover H2, and, if desired, the upper part of said device H may be expanded or provided with a disk or a ange, such as HX, or other flame-expander adapted to tend to spread the ame outward, the position of this top of the re- IOO strictor H. being substantially on a levelwith the top edgeof 'the hoodD, or i ust below same, or thereabout. Thus a reg-ulated and restricted amount of air can'pass up to the exterior,

of the dame, and also a regulated and restricted. amount of air can pass tothe interior of thecircu-lar oil-iiame, the first-named air-supply through the annular passage d being-lim'- ited by the flange G and the second-named air-supply through the central passage b being limited by the restrictor H.

I is the circular wick in the wick-tubes E and F, andJ isan ordinary wick-raiser. for,v

raising and lowering the wick in anypwellfknown or suitable manner. Thustlie wh'ol of the parts exterior of the wick-tubes E andV y F "are formed cylindrical, of very narrow diame'ter,l and are very compact and enable the use therewith of the fittings (gallery and globe,4 chimney, dac.) of the aforesaid well known typeof incandescent gas-`b urners with mantle. a

Anim portant and essential part of the present invention-consists in the arrangement and disposition of the various parts relatively to oneanother', and especially the arrangement of thefhood D .relatively to the wick-tubes E and' F and the height'to whichsaid head D is carried above the top of the wick I in the wick-tubes E-and F'andalso in theregnlated airsu-pply to the exterior-audio the interior of the fla-me respectively, and also to the.

relative position of the ange G with respect to the top of the wick-tubes and its distance fromfth'e exterior of saidtube E. The aforesaid annular space or opening between the v inside wall of the hood and the outside wall4 of the wick-tubes is of sncient size to allow arr. ain-ple supply of air to the exterior of the Hamer. Also-instead of mounting-the expander directly on a perforated cone or device, suchasH H, as aforesaid,said restrictor or device,fsugch as'H H', may be made separately and arranged lower down' in the wick-tube F, and

.f the expander-H would then be supported in any suitable manner-such, for instance, as a centraly pillar-inthe aforesaid positionnamely, ator about the samehorizontal plane g to Fig. 6, kexcept that the vertical post H3- is fixed. Thus it will be seen that in [this vburner with straight chimney air can only obtainV access to the interior of said chimney through the said basket B, and thence is directed partly through the interior of the wicktube--'. e., through the passage b-and partly through the annular space or passage @,as aforesaid,1 and, if desired, a series of holes D* may be-provided in the lower part ofthe hood D, some of said holes D leading to the interior ofV the aforesaid straight chimney Z at or near the bottom'of the latter and between same and the outside of the hood D and some lead- ,ingto tire exterior of said chimney Z, the obthe burner cool.

ject of these holes D being mainly to keep Thus by the present invenytionacircular flame'uis producedin azhydro- Vcarbon lamp@ which assumesv the same or a very similarnshape and appearance to the appearance-and shape of the well-known incandescent gas burner with mantle, as indicated in dotted lines at W in Figs. 2 and 5,

intense light being produ cedwith great-economy of' consumption ofoil, further advanftageszbeingthat saidlight can be regulated- 'L'. e., can be turned down-whereupon the lamp will bu-rn without smell. even when turned dro-wnY qui-te low`while the container oroil-reservoirX always keepsjc o,ol.n i v By forming the chimneyvZ ofperfectly- `gclear glassfrom the bottomthereof; up' to the :line V V, (see Fig. 5,) or thereaboutand then `forming said chimneyl Z semitransparent or translucent or even 'opaque above li-neV V i thereby the aforesaid imitation incandescent-` like appearance ris heightened, since the top- ?most part of the lameW is hidden by the said non-transparent` part of the chimney Z.

Ifclaim as new, anddesire to secureby-Letters- Having now described my invention what Patent of the United States, is-

l. The combination with a circular-.wick

oil-burner,l having a hood such asl) extending above 4the top of the wick-tubesa restrictor such as B, and an annular inwardlylprojecting flange, suchas G, actinginy conjunction with said restrictor B- arrangedrbelow the top of the wick-tubes to regulate the supply of air to the exterior oi the darne-gy of Iaconical restrictor mounted within the' wick-tubes to` regulate the air suppliedtothe interior of the flame, and a dame-spreader l mountedupon the upper end of said restric'tor, at or near the level of the top of the hoodD, 2 substantially as and for the purposes djescribed. l

2. The combination of a straight-through cylindrical chimney with acireular-wick oilburnerhaving a hood such as D extending i' above the topy of the wick-tubes, a restrictor such as B acting i-n conjunction with an anjnular inwardly-projecting ange such as G 5 arranged below the top of the wick-tubes to regulate the supply of air to the exterior of i the llame and a restrictor such as H to regulate the air-supply tothe interior of the amejact- `ing inconjunction with a dame-spreader, such as HX disposed at or near the' level of the top of thel hood D substantially as and for the purposes described.

3. A circular-wick oil-burner consistingof the combination'with circular-wick tubes, of

a hoodconcentrically mounted around the" upper part of the wick-tubesand tapering inwardly above the top edge of said Wicktubes, an annular 'ange extending horizon- `tally inward from the inside of said hood IOO lio

IZO

- above the exterior air-inlet restrictor but below the top of the Wick-tubes to regulate the air-supply to the exterior of the flame, a restrictor in the central air-passage to regulate the air-supply to the interior of the llame, and a flame-spreader centrally located at or near the level of the top of the hood, substantially as and for the purposes hereinbefore set forth.

4. The combination with a circular-Wick oil-burner, having a hood D extending above the top of the wick-tubes, an exterior restrictor B, and an annular inwardly-projecting flange arranged below the top of the wicktubes, acting in conjunction Withsaid restricter B to regulate the supply of air to the exterior of the flame; of a conical restrictor mounted within the wick-tubes to regulate the supply of air to the interior of the Haine,

and a spreader mounted upon said restrictor and acting in conjunction therewith, centrail y disposed at or near the level of the top of the hood D, substantially as .and for the purposes described. I t

5. The combination of a straight-through cylindrical chimney, with a circular-wick oilburner having a hood D extending above the top of the wick-tubes, an exterior restrictor B acting in conjunction with an annular inwardly-projecting ange G arranged belowT the top of the Wick-tubes to regulate the supply of air to the exterior of the flame, and a restrictor H to regulate the air-supply to the interior of the anie acting in conjunction with a llame-spreader H2 centrally disposed at or near the level of the top or the hood D substantially as and for the scribed. 'Y

In Witness whereof I have hereunto set lny hand in presence of two Witnesses.

HENRY DARBY. Witnesses:

H. D. JAMESON, A. NUTTING.

purposes de- 

